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双折射材料的温度修正 Birefringent Material Temperature Modification /+G&N{)k #;'1aT 目前,FRED尚不支持“global”温度设置,温度敏感性评估一般用脚本编程来完成,该文档演示双折射材料的折射率随温度变化的问题。附件案例文件包括两个双折射材料模,“KDP”和 “KDP Baseline”, KDP Baseline材料存储在已知温度下的折射率,KDP材料用于储存在“current”温度下的折射率值,定义为与baseline material之间的温度差。一个嵌入的脚本名为“modifyBirefringentMaterialIndex” ,包含在FRED文件中,另外也单独附加。其实现过程如下: uY;-x~Z *ms?UFV[r 1.Retrieve the node numbers for the two materials, KDP and KDP Baseline ?6@Y"5
z3g =)C}u6 2.User specifies CTE for the ordinary and extraordinary refractive index values as well as the temperature difference from the baseline ;p%a!Im_< 95giqQ(N 3.Loop over the baseline material samples and determine the number of wavelength entries !8]W"@qb T"-HBwl 4.Loop over each sampled wavelength entry in the baseline material :0pxacD"! 9 ="i'nYp a.Modify the ordinary and extraordinary refractive index values using (2) above emb~l{K $ mPGF Y b.Apply the modified values to the non-baseline material JMN1+:7i A(#hyb# 5.Set a description on the non-baseline material indicating the temperature change from baseline eHG**@"X pDD0 QO 脚本编程及GUI例程请下载链接: 4RsV\Y{FN u79.`,Ad& http://fred-kb.photonengr.com/files/2011/04/modifyBirefringentMaterialIndex.frs dI&2dcumS pLL
^R http://fred-kb.photonengr.com/files/2011/04/birefringentMaterialTemperatureModification.frd r'fNQJ > r?d601(fa ~DcX}VCm QQ:2987619807 c]O3pcU
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